Drilldown: Patents
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Patents > Office :
?? or
DE or
FI or
UN
& Grant date:
April 9, 1896
& Publication date:
March 6, 1895
& IPCs :
IPC B64C33/02 or
IPC B64C35/00
& CPCs:
CPC B64C35/00
& Number of diagram pages:
1
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